Measurement methods
The tensile properties of packaging adhesive tapes can be determined using the following methods:
Tensile test method: clamp a certain length of adhesive tape between two clamps, and gradually apply tension until the adhesive tape breaks. During the testing process, parameters such as tensile strength and elongation of the adhesive tape during the stretching process can be recorded, and analyzed and calculated as required.
Peeling test method: stick a certain length of adhesive tape on a flat surface, and gradually apply tension until the adhesive tape is separated from the surface. During the test, parameters such as the peeling strength and peeling speed of the adhesive tape during the peeling process can be recorded, and analyzed and calculated as needed.
Multiplication test method: Fix the two ends of a piece of adhesive tape on two fixtures respectively, and then move the fixtures in opposite directions until the adhesive tape breaks. During the testing process, parameters such as tensile strength and elongation of the adhesive tape during the stretching process can be recorded, and analyzed and calculated as required.
Specific steps
Here are the specific steps for each method:
Tensile test method:
Prepare a length of adhesive tape that will be clamped between the two clamps.
Gradually apply tension until the adhesive strip breaks.
Record the tensile strength, elongation and other parameters of the adhesive tape during the stretching process, and analyze and calculate as needed.
Peel test method:
Prepare a certain length of adhesive tape and stick it on a flat surface.
Gradually apply tension until the adhesive strip separates from the surface.
Record the peeling strength, peeling speed and other parameters of the adhesive tape during the peeling process, and analyze and calculate as needed.
Doubling test method:
Prepare a certain length of adhesive tape, and fix its two ends on the two clamps respectively.
The jigs are moved in opposite directions until the adhesive tape breaks.
Record the tensile strength, elongation and other parameters of the adhesive tape during the stretching process, and analyze and calculate as needed.
In short, it is necessary to pay attention to the accuracy and consistency of operation during testing to ensure the accuracy and repeatability of test results. At the same time, according to the type and application scenario of the specific adhesive tape, a suitable test method can be selected. At the same time, attention needs to be paid to the standardization of the test environment and test equipment to ensure the comparability of test results.
